King's Cross Station & Magical Platforms Basic Information

King's Cross Station is considered one of the main train stations to serve London, England. Students of Hogwarts School of Witchcraft and Wizardry take the scarlet steam engine named the Hogwarts Express to Hogwarts from Platform 9¾ on 1 September at 11 AM sharp. It also serves as a major intercity and commuter rail hub for Muggles going to North London or Yorkshire and the North East and Scotland.

Platform 9¾ is the platform from which the Hogwarts Express may be boarded on September the 1st. The platform has, on September the first, a sign hanging over the scene reading: Hogwarts Express, eleven o'clock, and there is a wrought iron archway bearing the words Platform Nine and Three Quarters over the entry/exit to the platform. At the conclusion of the school year, the Hogwarts Express returns to King's Cross bearing the students of Hogwarts back for their summer holidays. It can be assumed that the sign over the platform changes on the day the train returns from Hogwarts.

In order for someone to get onto Platform 9¾, they must walk directly at the apparently solid barrier dividing platforms nine and ten. Mrs. Molly Weasley advises that one should "do it at a bit of a run if you're nervous." It is not known exactly how Muggles do not, or cannot get onto the platform; however, it can be assumed that powerful magic of some sort is employed in order to keep them ignorant of its existence. However, in Harry Potter and the Deathly Hallows it was shown in Snape's memories that Lily Evans's family was present at the platform as she boarded it, which could mean that Muggles are able to enter the platform.